When you declare you have found a functioning superconductor to the scientific community and the press, you should already have your ducks in a row and be ready to publish, it's called 'd o c u m e n t a t i o n'. LK 99's handling has been one long murky ball of attention gathering nothing, much like Pons-fleischmann. The scientists should have themselves reproduced their work before proceeding with their finding.
You don't get to change your story, or your secret formula over and over again and claim discovery.
Here's the kicker, if someone else looks at your method, and tried something else that actually works, and then they properly document their method correctly and then publish, and the work can actually be reproduced, then they should be the ones to get credit.